Lifelines Photic User manual

USER MANUAL
Imagine EEG Anywhere
Stimulator

Lifelines Ltd,
7 Clarendon Court, Over Wallop, near Stockbridge,
Hampshire SO20 8HU, UK
Telephone [phone]
www.LLines.com
[e-mail]
Incereb Ltd.
3015 Lake Drive, Citywest
Dublin D24 DKP4, Ireland
No: 51331-006
Part No: 1240
Issue: 2.0
CCN: CCN126
Created
Checked
Approved
Digitally signed by Geoff
Salter
Date: 2020.04.22 10:44:48
+01'00'
Digitally signed by David Hulin
DN: cn=David Hulin, o=Lifelines Ltd,
ou=Development,
[email protected], c=GB
Date: 2020.06.15 14:25:49 +01'00'
Digitally signed by Geoff
Salter
Date: 2020.06.15 14:30:36
+01'00'

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Customer Responsibility
The Photic Stimulator is reliable only when operated and maintained in accordance with the instructions contained
in this manual, accompanying labels, and inserts. A defective system should not be used. Parts that may be broken
or missing or those that are clearly worn or contaminated should be replaced immediately with new original
replacement parts that have been manufactured by or are available from Lifelines.
The owner of this system has the sole responsibility for any malfunction resulting from improper use or
maintenance, or repair done by anyone other than a qualified Lifelines representative and for any malfunctions
caused by any parts that have been damaged or modified by anyone other than a qualified Lifelines representative.
The owner of this system has the sole responsibility for the connection of this product to other systems which do
not satisfy the electrical safety requirements of standards IEC 60601-1 and IEC 60601-1-2 for medical devices.
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Disclaimers & Warranties
The information in this section is subject to change without notice.
Except as stated below, Lifelines makes no warranty of any kind with regard to this material, including, but not
limited to, the implied warranties of merchantability and fitness for a particular purpose. Lifelines shall not be
liable for errors contained herein or for incidental or consequential damages in connection with the furnishing,
performance or use of this material.
Lifelines shall warrant its products against all defects in material and workmanship for one year from the date of
delivery.
Misuse, accident, modification, unsuitable physical or operating environment, improper maintenance or damage
caused by a product for which Lifelines is not responsible will void the warranty.
Lifelines do not warrant uninterrupted or error-free operation of its products.
Lifelines or its authorised agents will repair or replace any products that prove to be defective during the warranty
period, provided that these products are used as prescribed in the operating instructions in the user’s and service
manuals.
No other party is authorised to make any warranty to assume liability for Lifelines products. Lifelines will not
recognise any other warranty, either implied or in writing. In addition, services performed by someone other than
Lifelines or its authorised agents or any technical modification or changes of products without Lifelines prior,
written consent may be cause for voiding this warranty.
Defective products or parts must be returned to Lifelines or its authorised agents, along with an explanation of the
failure. Shipping costs must be prepaid.
Lifelines manufactures hardware and software to be used on or with standard PC-compatible computers and
operating software. Lifelines, however, assumes no responsibility for the use or reliability of its software or
hardware with equipment that is not furnished by third-party manufacturers accepted by Lifelines at the date of
purchase.
All warranties for third-party products used within the Photic Stimulator system are the responsibility of the
relevant manufacturer. Please refer to the relevant documentation on each product for further details.
This document contains proprietary information that is protected by copyright. All rights are reserved. No part of
this document may be photocopied, reproduced in any other form or translated into another language without the
prior written consent of Lifelines.
Trademarks
Microsoft, Windows and Windows NT are registered trademarks of the Microsoft Corporation. All other trademarks
and product names are the property of their relevant owners.
Safety
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Responsibility of manufacturer
The manufacturer and distributor consider themselves responsible for the equipment’s safety, reliability and
performance only if:
yany peripheral equipment to be used with the Photic Stimulator is supplied by third-party providers
recommended by the manufacturer;
yassembly operations, extensions, readjustments, modifications, or repairs are carried out by person authorised
by the manufacturer;
ythe electrical installation of the relevant room complies with the appropriate requirements;
ythe equipment is used by a healthcare professional and in accordance with the instructions for use.
NOTE: the manufacturer has a policy of continual product improvement; hence the equipment specifications
are subject to change without notice.
Check with Lifelines or your distributor if a software update is available.
NOTE: Medical electrical equipment needs special precautions regarding EMC and needs to be installed and
put into service according to the EMC information provided in the Appendix.
Software and Virus Protection
Lifelines takes all reasonable steps to ensure that its software is virus-free. In line with modern computing practice,
it is advisable that continual protection against viruses, Trojans, malware, adware etc. is provided on the PC
used for installation and the surrounding systems. Please note the following recommendations which should be
supported by your internal IT/Computing department procedures and practices:
1. Virus protection software should be installed on every computer at risk of infection. This software should have a
resident (online) shield and provide email scanning if appropriate.
2. Virus scanning should be set to manual mode or automatic if desired but at a time when the system is not being
used.
3. All programs offering auto-update features, including Windows, should be set to manual or automatic if desired
but at a time when the system is not being used.
4. Adopt formal departmental or organisational procedures to ensure the integrity and safe operation of the
medical equipment and supporting systems.
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Contents
Disclaimers & Warranties.................................................................................................................................................2
1 System Overview ........................................................................................................................................................ 6
1.1 Warnings & Cautions: ...............................................................................................................................................................................6
1.2 Explanation of symbols .............................................................................................................................................................................7
1.3 The system and its parts.........................................................................................................................................................................8
1.4 Specifications and safety........................................................................................................................................................................9
1.5 Description of the components.......................................................................................................................................................10
2 Installation and Maintenance .............................................................................................................................12
2.1 Checks for completeness and integrity .....................................................................................................................................12
2.2 Environmental parameters for operation..................................................................................................................................12
2.3 Power supply connections.................................................................................................................................................................. 13
2.4 Use with other equipment ................................................................................................................................................................... 13
2.5 Interference..................................................................................................................................................................................................... 13
2.6 Maintenance and cleaning.................................................................................................................................................................. 14
2.7 Disposal of equipment............................................................................................................................................................................ 14
3 Connections for Photic Stimulator setup.....................................................................................................15
3.1 Overview............................................................................................................................................................................................................ 15
3.2 Connecting the Photic Stimulator.................................................................................................................................................. 16
3.3 Switching on....................................................................................................................................................................................................17
4 Photic Stimulator Setup Software....................................................................................................................18
4.1 Installation........................................................................................................................................................................................................ 18
4.2 Overview............................................................................................................................................................................................................ 18
4.3 Manual Stimulation ..................................................................................................................................................................................20
4.4 Sweep Stimulation....................................................................................................................................................................................20
4.5 Complex Stimulation ............................................................................................................................................................................... 22
4.6 Setup 1 ................................................................................................................................................................................................................ 23
4.7 Setup 2 ............................................................................................................................................................................................................... 25
4.8 Shutdown procedure.............................................................................................................................................................................. 26
Version History ....................................................................................................................................................................35

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Illustrations
Figure 1: Connecting the Photic Stimulator.......................................................................................................................................15
Figure 3: Photic not connected (Manual Stimulation) ..............................................................................................................18
Figure 4: Photic connected (Manual Stimulation)........................................................................................................................19
Figure 5: Photic connected and running (Manual Stimulation) ........................................................................................19
Figure 6: Sweep Stimulation ........................................................................................................................................................................20
Figure 7: Sweep Stimulation setup........................................................................................................................................................... 21
Figure 8: Complex Stimulation....................................................................................................................................................................22
Figure 10: Setup 1...................................................................................................................................................................................................23
Figure 11: Setup 2 ...................................................................................................................................................................................................25
Figure 11: Shutdown Procedure..................................................................................................................................................................26
Appendices
Appendix 1: Photic Stimulator Specifications.............................................................................................................27
Appendix 2: Connection Details........................................................................................................................................ 29
Appendix 3: Manufacturer’s Declaration ...................................................................................................................... 31

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1 System Overview
1.1 Warnings & Cautions:
Warning sign indicates a situation or
procedures that may be dangerous for
the patient and/or user.
Caution sign indicates a situation or
procedures that may cause equipment
damage or its improper usage.
The Photic Stimulator must only be used by a healthcare professional, within a hospital or clinical
setting, who has the training and knowledge to undertake EEG examinations and is familiar with EEG
equipment and practice. This user manual must be read in its entirety before the equipment is used.
There is a small risk that photic stimulation can induce a seizure in photosensitive patients. For this
reason photic stimulation should only be carried out with strict adherence to an approved photic
stimulation protocol. The methods used in the protocol should maximize the probability of eliciting
abnormal responses in patients with photosensitive epilepsy, while minimising the chances of
inducing such a response in others or of precipitating a seizure during testing. Bystanders should be
excluded from the treatment area.
Do not modify this equipment without the authorization of the manufacturer.
The use of accessories, transducers and cables other than those specified, with the exception of
transducers and cables sold by the manufacturer of the equipment as replacement parts for internal
components, may result in increased emissions or decreased immunity of the equipment
The equipment or system should not be used adjacent to or stacked with other equipment and that if
adjacent or stacked use is necessary, the equipment or system should be observed to verify normal
operation in the configuration in which it will be used.
Portable RF communications equipment (including peripherals such as antenna cables and external
antennas) should be used no closer than 30 cm (12 inches) to any part of the Photic, including
cables specified by Lifelines Ltd. Otherwise, degradation of the performance of this equipment could
result.
CONTRAINDICATIONS:
1. Patients whose known or possible diagnosis does not include epilepsy.
2. Patients with an established history of electroclinical events to photo sensitivity.
3. Patients with known epilepsy who have been seizure-free for some time.
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1.2 Explanation of symbols
Symbol Description
Follow operating instructions
Attention consult accompanying documentation
Input/output connection
Output connection
O On
Manufacturer
European Representative
Special recycling required*
* Special recycling required, do not dispose of in landfill. When this equipment has reached the end of its useful life, it must be disposed of in
an environmentally-friendly way. Waste electrical and electronic equipment (WEEE) requires special procedures for recycling or disposal.
This includes batteries, printed circuit boards, electronic components, wiring and other elements of electronic devices. Follow all of your
respective local laws and regulations for the proper disposal of such equipment. Contact your local distributor for information concerning this.
Storage and transport symbols
Symbol Meaning Symbol Meaning Symbol Meaning
Temperature limits Fragile Keep dry
Relative humidity
limits
Barometric
pressure limits
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1.3 The system and its parts
The Photic Stimulator is a high performance solid-state flash stimulator used in the fields of Electroencephalog-
raphy (EEG) and Visual Evoked Potentials.
The system comprises the following components:
Component Part Number
Photic Stimulator 1237
Photic USB Cable 1241
Photic User Manual 1240
Photic Setup S/W 1247
Photic Arm 1246
Customer registration form 1032
Optional components:
Photic USB Splitter Cable 1243
Photic Ext. Trig Cable (Hirose connector) 1242
Photic Pwr+Ext. Trig I/P Cable (D-26HD) 1254*
Photic Pwr+Cntrl+Ext. Trig I/P Cable (D-26HD) 1265*
Photic Pwr+Cntrl+Ext. Trig I/O Cable (D-26HD) 1269
Photic D-26 BNC Adapter Cable 1260
Photic D-26 MiniDIN Adapter Cable 1270
Photic USB + Trig Cable (USB & BNC) 1261#
Photic Trigger Output Cable (Jack) 1248
Photic Trigger Output Cable (Touchproof) 1251
NOTE: * Both these cables are superseded by the ‘1269’ cable.
#This cable is superseded by the ‘1269’ + ‘1270’ cables.
NOTE: Part numbers may be preceded by ‘L14’ on labelling or packaging.
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1.4 Specifications and safety
Electrical Safety and EMC
The system has been certified and complies with the following standards
Standard Description
IEC 60601-1 Standard for medical electrical equipment, general requirements.
UL60601-1:2003 USA standard for medical electrical equipment, general re-quirements.
CAN/CSA 22.2 No 601.1 M90 Canadian standard for medical electrical equipment, general requirements.
IEC 60601-1-2 Standard for medical electrical equipment, EMC requirements, calling:
*CISPR11 Conducted Emissions, Group 1, Class B
CISPR11 Radiated Emissions, Group 1, Class B
IEC61000-4-2 Electrostatic Discharges
IEC61000-4-3 Immunity - Radiated RF Field
*IEC61000-4-4 Immunity - Transients Bursts
*IEC61000-4-5 Immunity – Surges
IEC61000-4-6 Immunity – Conducted
IEC61000-4-8 Immunity – Power frequency fields
*IEC61000-4-11 Immunity – Voltage dips, interruptions
*IEC61000-3-2 Harmonic Emissions
*IEC61000-3-3 Voltage Fluctuations/flicker
*Note: Compliance is provided by the PC.
Classification
Degree of protection against electrical shock: No patient-applied parts, no accessible metalwork
Type of protection against electrical shock: Class II device
Degree of protection against harmful ingress of water: Ordinary (no protection).
Mode of operation: Continuous.
Degree of safety of application in the presence of a flammable
anaesthetic mixture with air or with oxygen or nitrous oxide: Not suitable
Light Hazards
The unit has been tested and is in conformance with the following requirements for optical radiation safety:
Standard Description
ISO 15004-2:2007 Light Hazard Protection, Group 1 instrument.
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1.5 Description of the components
The Photic Stimulator
The Photic Stimulator is a device for generating short-duration flashes of white light by means of a solid-state
LED (light emitting diode). The flashes are controlled from a host PC and typically occur over a repetition rate of
between 1 and 60Hz.
Photic stimulation is used as a clinical routine in the field of Electroencephalography (EEG) and Visual Evoked
Potentials. The visual stimulation is used to produce electrical responses in the brain of the patient. These signals
are monitored and recorded by a separate piece of equipment. In EEG studies where epilepsy is typically being
diagnosed, Photic stimulation is used to assess the patient’s photosensitivity, i.e. sensitivity to flashing lights.
The Photic Stimulator is not in contact with the patient and the luminous energy produced is not capable of
creating a health hazard to the patient. Note the Cautions at the beginning of this document.
Refer to Figure 1 for the system setup.
The Photic Stimulator is typically placed 30 cm in front of the patient’s eyes. The operator would normally stand in
front of the patient in order to observe any physiological eects during the test. Other persons are excluded from
the area.
Photic USB Connection Cable
The PC connection cable connects from the Photic Stimulator RJ45 connector to a USB port on the host PC.
The Photic must only be used with the USB cable provided with the unit.
Arm
The arm allows the unit to be conveniently positioned in front of the patient.
Setup software
The Trackit Plus software and stand-alone Photic setup software runs under Microsoft Windows XP, Windows Vista,
Windows 7, 8 or 10 on the host PC and is used to setup and trigger the Photic Stimulator.
Host PC (not supplied by Lifelines)
The host PC must be certified to IEC 60950-1 for safety reasons.
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Optional Interface Cables
The following, optional, interface cables can be used to interface the Photic Stimulator to 3rd party EEG equipment.
USB Splitter Cable The allows the Photic to be used at full power by using 2 USB ports. Most USB
ports can supply the full-power, intermittent current required by the unit and a
USB splitter cable is not normally required. Refer Section 3.2 for details.
Ext. Trigger Input Cable
(D-26HD connector)
This cable allows the Photic to be triggered from a TTL-type signal derived
from an external piece of equipment. It is fitted with a D-26 High-density plug
suitable for connection to the USBIFB. Power is supplied from an available USB
port. Adapter cables are available to convert the D26 connector to a BNC for
trigger input or MiniDIN for trigger output (see below). For details of this mode
of operation, refer 3.2.
D-26HD BNC Adapter This cable is used with the cable above to convert from the D-26HD trigger
input to a standard BNC connector
D-26HD MiniDIN Adapter This cable is used with the cable above to convert from the D-26HD trigger
output to a MiniDIN connector.
Ext. Trigger Input Cable
(Hirose HR212-10P-8P
connector)
This cable allows the Photic to be supplied by 15V and triggered from the
Viasys V32 system.
Ext. Trigger Input Cable
+ USB control (USB and
BNC connectors)
This cable allows the Photic to be triggered from a TTL-type signal whilst being
simultaneously powered and controlled from USB. This allows the intensity and
duration for the external triggering to be controlled from the USB interface.
Trigger Output Cable This allows the Photic to trigger an external amplifier or other piece of
equipment. It provides a precise pulse output synchronised to the flash output
and is connected to one of the Trackit's or R40's Auxiliary inputs located on the
PCU. It is available with a 3.5mm jack plug or 2-pin touchproof.
Note: Restrictions on signal output connections. The trigger output cable
described above is fully isolated in the Photic to type BF standards so it can be
connected to type BF amplifier inputs.
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2 Installation and Maintenance
The following section must be read and understood before the equipment is switched ON.
Medical electrical equipment needs special precautions regarding EMC and needs to be installed
and put into service according to the EMC information provided in the Appendix.
The function or safety of the equipment could be impaired if it has been subjected to unfavourable conditions in
storage or in transit. If at any time function or safety is thought to be impaired, the instrument should be taken out
of operation and secured against unintended use.
The manufacturer should be contacted (details on page ii) for assistance, if needed, in setting up, using or
maintaining the equipment; or to report unexpected operation or events.
The assembly of the system and any modifications during its service life require evaluation to the requirements of
IEC 60601-1.
2.1 Checks for completeness and integrity
1 Remove the equipment from the packaging case(s).
2 Use the parts list to check that all ordered items have been received.
3 Assembly instructions for third-party products will be found in their packing cases. It is recommended that
these instructions be filed with Photic Stimulator technical reference materials.
4 Check for signs of damage that may have occurred during transit or storage. If any damage is found, do not
use the instrument; contact your distributor.
2.2 Environmental parameters for operation
The operational and storage/transportation environmental conditions are as follows:
Operational Storage and transport
Temperature +10°C to +40°C
(+50°F to +104°F) Temperature -10°C to +50°C (14°F to +122°F)
Relative humidity 25% to 95%
non-condensing Relative humidity 10% to 95% non-condensing
Atmospheric pressure 700 hPa to 1060 hPa Atmospheric pressure 500 hPa to 1060 hPa
Do not obstruct any cooling slots. Position the instrument so that air flows freely.
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Installation and Maintenance
2.3 Power supply connections
Power requirements 5V DC (USB) provided by host PC OR
12-15V (provided by 3rd party EEG system)
Power consumption Maximum peak power consumption 2.5W (single USB port), 5W (two USB ports)
or 3.0W @ 12V (direct connection).
Leakage current
This instrument is designed to comply with IEC 60601-1, the international standard for medical electronic
equipment, which specifies the permissible levels of leakage current from individual products. A potential hazard
exists in the summation of leakage currents caused by connecting several pieces of equipment together. Because
this instrument can be used in conjunction with standard electronic devices, the total leakage current should be
tested at regular intervals.
2.4 Use with other equipment
Host PC
The host PC, which is not supplied by Lifelines, must be certified to IEC 60950-1 for safety reasons.
EEG amplifier
The patient will be connected to an EEG amplifier during the EEG examination, and the Photic’s isolated trigger
output can connect to an input channel of the amplifier to provide a marker pulse of the flash frequency.
Other patient-connected equipment
The Photic Stimulator has no patient-applied parts and so when used simultaneously with other patient-connected
equipment, for example a cardiac pacemaker or other electrical stimulator, it is unlikely that a safety hazard will
arise. However always consult the documentation supplied with the other patient-connected equipment to ensure
that all hazards, warnings and cautions are considered before the equipment is used together.
2.5 Interference
The Photic Stimulator will continue to operate in the presence of radio frequency magnetic fields (RF) and the ef-
fects of electrostatic discharges (ESD) and other interference, in accordance with the requirements of EN60601-1-2.
Portable RF communications equipment (including peripherals such as antenna cables and external
antennas) should be used no closer than 30 cm (12 inches) to any part of the Photic Stimulator,
including cables specified by Lifelines Ltd. Otherwise, degradation of the performance of this
equipment could result.
When in close proximity to the Photic Stimulator, do not use mobile phones, transmitters, power
transformers, motors, or other equipment that generates magnetic fields. Refer to the Appendix for
more information.
Medical electrical equipment needs special precautions regarding EMC and needs to be installed
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2.6 Maintenance and cleaning
The Photic Stimulator contains no user-serviceable parts. The system uses solid-state components and requires no
routine testing or maintenance procedures apart from occasional cleaning and checking for wear and damage to
all parts including the accessories.
All the outer surfaces of the Photic Stimulator system may be cleaned using a soft cloth moistened with water and
detergent. Each item may also be cleaned using a low-pressure air-line or a vacuum cleaner.
Disinfection of the equipment can be carried out by the use of QAC-based disinfectants. Wipes are recommended
in order to prevent the ingress of any liquid into the equipment. Suitable products include Mikrozid Sensitive Wipes
(Schülke & Mayr GmbH), Microbac forte (Paul Hartmann AG), Distel Wipes (Tristel Ltd.), Mikro-Kill disinfectant
wipes (Medline Industries, Inc.), Sani-Cloth HB
Do not allow any liquid to enter the case of any instrument or connector.
Do not use acetone on any of the instruments.
2.7 Disposal of equipment
When the device has reached the end of its operating life, it should be disposed of in accordance with local waste
regulation authority that is typically within the local government oice.
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3 Connections for Photic Stimulator setup
3.1 Overview
Below is an overview diagram showing the principal components when connected to a PC during system set up.
Mains Power
Medical Grade
Laptop Mains PSU
Patient Isolation Zone
PC (IEC 60950)
Laptop PC
Patient
To USB port
(power & control)
USB splitter
cable (optional)
Ext. trigger I/O
D26 cable (optional)
Photic USB
cable
Arm mounted on
desk/bed clamp or
suitable stand
Trigger (isolated)
output cable (optional)
Photic Stimulator
Ext. trigger input +
USB cable (optional)
Ext. trigger input + power
Hirose cable (optional)
USB power
& control
D26
adapter
D26 plug trig. I/O
BNC trig. input
BNC trig. input
Hirose power and trig. input
MiniDin trig. output
USB power & control
To Trackit/R40
Aux. input
Figure 1: Connecting the Photic Stimulator
List of parts List of optional parts
Photic Stimulator Interface cables - various
Photic USB Cable Trigger Input Cables - various
Photic User Manual Trigger Output Cable - various
Photic Setup S/W
Photic Arm
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3.2 Connecting the Photic Stimulator
The Photic Stimulator may be used in the following dierent modes:
USB Interface
This is the normal mode whereby power and control is over a USB connection. The general arrangement is shown in
Figure 1 above. The Photic Stimulator USB Cable connects from the Photic’s RJ45 connector to the Host PC USB port.
The Photic must only be used with the USB cable provided with the unit.
External Power + External Trigger Interface
This is a ‘dumb’ operating mode where the unit is triggered by a TTL-like signal. This is most useful when the unit
is being used to replace an older piece of equipment that uses a similar trigger arrangement. Cables are available
oering BNC trigger input, D-26HD and Hirose - see table "Optional Interface Cables" on page 11. There are
two operating modes available, depending on the voltage of the external power supply:
y12 – 15V is detected by the Photic and in this mode the pulse width of the incoming trigger signal determines the
flash pulse width. In this way, it is possible to control the intensity.
y5V is detected by the Photic and in this mode the pulse width of the incoming trigger signal is ignored and the
flash pulse width is fixed at 10ms.
NOTE: In V3 and later of the Photic firmware it is possible to setup an internal flash memory parameter to
control the default intensity and duration (not for the PWM case) for external trigger inputs. This parameter is
setup once over the USB interface and is then used thereafter at every switch on. Refer to section 4 for details.
NOTE: In V4 and later of the Photic firmware it is possible to setup an internal flash memory parameter to control
the default intensity and duration, including the PWM 12V case, for external trigger inputs. This parameter is setup
once over the USB interface and is then used thereafter at every switch on. Refer to section 4 for details.
USB + External Trigger combined
This allows the unit to be powered and controlled over USB but also externally triggered from the BNC connector.
This enables the intensity and duration to be controlled over USB for the external trigger input. When the USB
control turns on its own flash repetition rate, this takes priority over the external trigger input. When turned o, the
external source is enabled again.
External Trigger Output (isolated)
This signal is provided on a 2-pin Type 249 touchproof connector on the Photic unit. It provides a synchronisation
trigger pulse to the Trackit or R40 EEG Recorder or similar equipment to generate the Photic ‘tick’ marks in the
recording. The Trigger Output cable connects from this socket to one of the Aux. Inputs on the Trackit or R40.
The Trigger Output from the Photic is isolated and suitable for connection to type BF equipment. The signal is
approximately 75mV in amplitude with a pulse width the same as the currently set flash duration. An alternative
cable is available fitted with a 2-pin touchproof connector for use with an EEG amplifier without an 3.5mm Aux
connector, such as the Trackit T4A.
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External Trigger Output (non-isolated)
This signal is provided on a connector at the host-end of the Photic interface cable. It is a TTL type signal and is
used to provide a synchronisation trigger output pulse to the PC.
3.3 Switching on
The Photic Stimulator has an on/o switch located on its rear panel. When o, the flash output is stopped
immediately. The state of the switch is communicated back to the host PC if using a USB connection.
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4 Photic Stimulator Setup Software
Photic setup and control software is supported on Microsoft Windows XP, Vista Windows 7, Windows 8 & 8.1 and
Windows 10.
The Photic Stimulator is connected to the host PC USB port. Over the USB connection, the software allows the user
to define parameters such as flash repetition rate, intensity and duration as well as run simple, sweep or complex
trains of stimulation.
NOTE: The screenshots shown in the following sections are for illustrative purposes only and may not be exact
representations of the actual product.
4.1 Installation
The USB drivers will be found on the installation CD. Upon first connection of the Photic to the PC USB port, at the
Windows prompt, browse to the folder CD Drive:\USB Drivers. From there, Windows will find the correct drivers for
the version of Windows being used.
To install the main program, follow the instructions in the Readme file on the CD.
4.2 Overview
When the program is launched, 3 types of flash stimulation are provide: Manual, Sweep or Complex. Select the
option as required and the control panel to the left will change appropriately.
Figure 3: Photic not connected (Manual Stimulation)
Photic Stimulator Setup Software